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Oksi-84 [34.3K]
3 years ago
6

What solid is generated when the right triangle is rotated about the line?

Mathematics
2 answers:
Alex777 [14]3 years ago
8 0
Your answer is a cone. B
LuckyWell [14K]3 years ago
3 0

Answer:

B) Cone

Step-by-step explanation:

Given a right triangle being rotated about the line.

without loss of generality, assume the left corner vertex is the origin and the horizontal line is x axis

WE have the line equation of the form y =mx which is rotated about x axis.

The top vertex forms a circle when rotated about x axis.  The origin becomes invariant, in other words, origin remains a point even after rotation.  

So we get a figure with top a point and base a circle symmetrical about middle line

This is nothing but a cone.

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there are 24 students in ms.woodalls class .1/2 of students are boys. 1/3 of the boys have brown hair.what is the number of boys
vampirchik [111]
First, let's find how many students are boys.  We do this by multiplying 24 by 1/2.

24*1/2=12.  Now, we find how many of the boys have brown hair.  We do this by multiplying the number of boys, 12, by 1/3.

12*1/3 = 4.  So, 4 boys have brown hair in Ms. Woodall's class.
6 0
3 years ago
PLZ HURRY IT'S URGENT!!!
Eva8 [605]

Answer:

Parallelogram

Step-by-step explanation:

graphing them makes two sets of parallel lines

4 0
3 years ago
Read 2 more answers
If a2> 20, then which of the following could be a value of a?
PIT_PIT [208]

Answer:

Step-by-step explanation:

a

The square root of 20 = 4.47 so a for sure.

But the root of 20 is also -4.48 so that means that 2 and 3 are added to the list

Now what to do about - 8

(- 8)^2 = 64

The square root of 64 = +/- 8

It's kind of slippery but it depends on how you see the problem. It is a bit ambiguous.

I would eliminate - 8 but your instructor may not. Argue that it should not be included, but don't take the argument on forever. Let it go.

a for sure.

b and c I think so.

-8 is iffy.

Answer a

7 0
3 years ago
What is the range of the data below <br> A.2 <br> B.5<br> C.12<br> D.13
Degger [83]

Range of the data = 13

Solution:

To find the range of the given data:

Let us first define what is range.

Range:

The range of the data set is the difference between the highest value and lowest value of the data set.

i. e. Range = Highest value – Lowest value

In the given number line,

Highest value indicated = 115

Lowest value indicated = 102

Range of the data = 115 – 102

                              = 13

Range of the data = 13

Hence the range of the given data is 13.

4 0
3 years ago
- 8 - 7(2x + 3) = 3(1 - 10) simplified
Dmitry [639]
-15(2x + 3) = -27
5(2x + 3) = 9
10x + 15 = 9
10x = -6
x= 0.6
7 0
4 years ago
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